/*
 * TeleStax, Open Source Cloud Communications  Copyright 2012.
 * and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.mobicents.protocols.ss7.map.service.mobility.locationManagement;

import java.io.IOException;

import org.mobicents.protocols.asn.AsnException;
import org.mobicents.protocols.asn.AsnInputStream;
import org.mobicents.protocols.asn.AsnOutputStream;
import org.mobicents.protocols.asn.Tag;
import org.mobicents.protocols.ss7.map.api.MAPException;
import org.mobicents.protocols.ss7.map.api.MAPMessageType;
import org.mobicents.protocols.ss7.map.api.MAPOperationCode;
import org.mobicents.protocols.ss7.map.api.MAPParsingComponentException;
import org.mobicents.protocols.ss7.map.api.MAPParsingComponentExceptionReason;
import org.mobicents.protocols.ss7.map.api.primitives.ISDNAddressString;
import org.mobicents.protocols.ss7.map.api.primitives.MAPExtensionContainer;
import org.mobicents.protocols.ss7.map.api.service.mobility.locationManagement.UpdateGprsLocationResponse;
import org.mobicents.protocols.ss7.map.primitives.ISDNAddressStringImpl;
import org.mobicents.protocols.ss7.map.primitives.MAPExtensionContainerImpl;
import org.mobicents.protocols.ss7.map.service.mobility.MobilityMessageImpl;

/**
 * 
 * @author Lasith Waruna Perera
 * 
 */
public class UpdateGprsLocationResponseImpl  extends MobilityMessageImpl implements  UpdateGprsLocationResponse{
	
	private static final int TAG_sgsnMmeSeparationSupported = 0;
	
	public static final String _PrimitiveName = "UpdateGprsLocationResponse";
	
	private ISDNAddressString hlrNumber;
	private MAPExtensionContainer extensionContainer;
	private boolean addCapability;
	private boolean sgsnMmeSeparationSupported;
	
	public UpdateGprsLocationResponseImpl() {
		super();
	}

	public UpdateGprsLocationResponseImpl(ISDNAddressString hlrNumber,
			MAPExtensionContainer extensionContainer, boolean addCapability,
			boolean sgsnMmeSeparationSupported) {
		super();
		this.hlrNumber = hlrNumber;
		this.extensionContainer = extensionContainer;
		this.addCapability = addCapability;
		this.sgsnMmeSeparationSupported = sgsnMmeSeparationSupported;
	}

	@Override
	public ISDNAddressString getHlrNumber() {
		return hlrNumber;
	}

	@Override
	public MAPExtensionContainer getExtensionContainer() {
		return this.extensionContainer;
	}

	@Override
	public boolean getAddCapability() {
		return this.addCapability;
	}

	@Override
	public boolean getSgsnMmeSeparationSupported() {
		return this.sgsnMmeSeparationSupported;
	}
	
	@Override
	public MAPMessageType getMessageType() {
		return MAPMessageType.updateGprsLocation_Request;
	}

	@Override
	public int getOperationCode() {
		return MAPOperationCode.updateGprsLocation;
	}

	@Override
	public int getTag() throws MAPException {
		return Tag.SEQUENCE;
	}

	@Override
	public int getTagClass() {
		return Tag.CLASS_UNIVERSAL;
	}

	@Override
	public boolean getIsPrimitive() {
		return false;
	}

	@Override
	public void decodeAll(AsnInputStream ansIS)
			throws MAPParsingComponentException {
		try {
			int length = ansIS.readLength();
			this._decode(ansIS, length);
		} catch (IOException e) {
			throw new MAPParsingComponentException(
					"IOException when decoding "+_PrimitiveName+": ", e,
					MAPParsingComponentExceptionReason.MistypedParameter);
		} catch (AsnException e) {
			throw new MAPParsingComponentException(
					"AsnException when decoding "+_PrimitiveName+": ", e,
					MAPParsingComponentExceptionReason.MistypedParameter);
		}
	}

	@Override
	public void decodeData(AsnInputStream ansIS, int length)
			throws MAPParsingComponentException {
		try {
			this._decode(ansIS, length);
		} catch (IOException e) {
			throw new MAPParsingComponentException(
					"IOException when decoding "+_PrimitiveName+": ", e,
					MAPParsingComponentExceptionReason.MistypedParameter);
		} catch (AsnException e) {
			throw new MAPParsingComponentException(
					"AsnException when decoding "+_PrimitiveName+": ", e,
					MAPParsingComponentExceptionReason.MistypedParameter);
		}
	}
	
	private void _decode(AsnInputStream ansIS, int length)
			throws MAPParsingComponentException, IOException, AsnException {
		this.hlrNumber = null;
		this.extensionContainer = null;
		this.addCapability = false;
		this.sgsnMmeSeparationSupported = false;
		
		AsnInputStream ais = ansIS.readSequenceStreamData(length);
		int num = 0;
		while (true) {
			if (ais.available() == 0)
				break;

			int tag = ais.readTag();

			switch (num) {
			case 0:
				// hlrNumber
				if (ais.getTagClass() != Tag.CLASS_UNIVERSAL || !ais.isTagPrimitive() || tag != Tag.STRING_OCTET)
					throw new MAPParsingComponentException("Error while decoding " + _PrimitiveName
							+ ".hlrNumber: Parameter 0 bad tag or tag class or not primitive", MAPParsingComponentExceptionReason.MistypedParameter);
				this.hlrNumber = new ISDNAddressStringImpl();
				((ISDNAddressStringImpl) this.hlrNumber).decodeAll(ais);
				break;
			default:
				if (ais.getTagClass() == Tag.CLASS_UNIVERSAL) {
					switch (tag) {
					case Tag.SEQUENCE:
						// extensionContainer
						if (ais.isTagPrimitive())
							throw new MAPParsingComponentException("Error while decoding " + _PrimitiveName
									+ ".extensionContainer: Parameter extensionContainer is primitive", MAPParsingComponentExceptionReason.MistypedParameter);
						this.extensionContainer = new MAPExtensionContainerImpl();
						((MAPExtensionContainerImpl) this.extensionContainer).decodeAll(ais);
						break;
					case Tag.NULL: // addCapability
						if (!ais.isTagPrimitive())
							throw new MAPParsingComponentException("Error while decoding " + _PrimitiveName
									+ ".addCapability: Parameter is  not primitive", MAPParsingComponentExceptionReason.MistypedParameter);
						 ais.readNull();
						this.addCapability = true;
						break;
					default:
						ais.advanceElement();
						break;
					}
				}else if (ais.getTagClass() == Tag.CLASS_CONTEXT_SPECIFIC) {
					
					switch (tag) {
					case TAG_sgsnMmeSeparationSupported: // sgsnMmeSeparationSupported
						if (!ais.isTagPrimitive())
							throw new MAPParsingComponentException("Error while decoding " + _PrimitiveName
									+ ".sgsnMmeSeparationSupported: Parameter is  not primitive", MAPParsingComponentExceptionReason.MistypedParameter);
						 ais.readNull();
						this.sgsnMmeSeparationSupported = true;
						break;
					default:
						ais.advanceElement();
						break;
					}
				} else {
					ais.advanceElement();
				}
				break;
			}

			num++;
		}	
		
		if (this.hlrNumber == null )
			throw new MAPParsingComponentException("Error while decoding " + _PrimitiveName + ": hlrNumber is null " ,
					MAPParsingComponentExceptionReason.MistypedParameter);
		
	}

	@Override
	public void encodeAll(AsnOutputStream asnOs) throws MAPException {
		try {
			this.encodeAll(asnOs, this.getTagClass(), this.getTag());
		} catch (Exception e) {
			e.printStackTrace();
			throw new MAPException(e);
		}
	}

	@Override
	public void encodeAll(AsnOutputStream asnOs, int tagClass, int tag)
			throws MAPException {
		try {
			asnOs.writeTag(tagClass, this.getIsPrimitive(), tag);
			int pos = asnOs.StartContentDefiniteLength();
			this.encodeData(asnOs);
			asnOs.FinalizeContent(pos);

		} catch (AsnException e) {
			e.printStackTrace();
			throw new MAPException(
					"AsnException when encoding "+_PrimitiveName+": "
							+ e.getMessage(), e);
		} catch (Exception e) {
			e.printStackTrace();
			throw new MAPException(
					"AsnException when encoding "+_PrimitiveName+": "
							+ e.getMessage(), e);
		}
	}

	@Override
	public void encodeData(AsnOutputStream asnOs) throws MAPException {

		try {
			if (this.hlrNumber == null )
				throw new MAPException("hlrNumber parameter must not be null");

			((ISDNAddressStringImpl) this.hlrNumber).encodeAll(asnOs);
			
			if (this.extensionContainer != null)
				((MAPExtensionContainerImpl) this.extensionContainer).encodeAll(asnOs);
			
			if (this.addCapability)
				asnOs.writeNull();
			
			if (this.sgsnMmeSeparationSupported)
				asnOs.writeNull(Tag.CLASS_CONTEXT_SPECIFIC, TAG_sgsnMmeSeparationSupported);
		
		} catch (IOException e) {
			throw new MAPException("IOException when encoding " + _PrimitiveName + ": " + e.getMessage(), e);
		} catch (AsnException e) {
			throw new MAPException("AsnException when encoding " + _PrimitiveName + ": " + e.getMessage(), e);
		}
	}
	
	@Override
	public String toString() {
		StringBuilder sb = new StringBuilder();
		sb.append(_PrimitiveName);
		sb.append(" [");
		
		if (this.hlrNumber != null) {
			sb.append("hlrNumber=");
			sb.append(this.hlrNumber.toString());
			sb.append(", ");
		}
		
		if (this.extensionContainer != null) {
			sb.append("extensionContainer=");
			sb.append(this.extensionContainer.toString());
			sb.append(", ");
		}
		
		if (this.addCapability) {
			sb.append("addCapability, ");
		}
		
		if (this.sgsnMmeSeparationSupported) {
			sb.append("sgsnMmeSeparationSupported, ");
		}

		sb.append("]");

		return sb.toString();
	}


}
